Howard tilden



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n owvann TILDEN, oF BOSTON, MASSACHUSETTS. i Letters Patent No. 73,409,datedY January 14, 1868.

Sitte Stigrmtlr meint to in tinte Editos nttutnnn mating nrt iii tigtstmt y TIO WIIOM IT MAY CONCERN:

Be it known that I, HOWARD TILDnN, ot' Boston, Suoll; county, State ofMassachusetts, here invented new and useful Improvements inLamp-Burners; and I do hereby declare the following to be a full andexact description of the same, reference being had tothe drawings thatAaccompany and form a part of these speeications, in whichi Figure 1 isVa. perspective view, with section of chimney in red.

Figure 2, plan of the base, the cap being removed.-

Figure 3, view of the cap, with the piojections that retainit in place.

Letter A, the base of the detachable part of the burner. Iietter B, thecap or upper part, in whichv is the slotfor the blaze. Letter C, flangeon .the base, A, on which the cap B rests,y as in iig. 1 D, a ringarranged,

as in tig. 1, for supporting the chimney. Letters e e e, wires risingfrom the ring D, and sustain it by joining with the base, A, at g, asshown in the drawings. These wires are then continued, andere bentdownwards, as

shown in the drawings, iig.' 1, and serve to steady the chimney,pressing, as they do, slightly against the inner surface thereof.Letters z' z' z', a series of small holes through the flange C, und soarranged that they shall open directly beneath the lower-edge of the capB, a part of the aicrising through them passingl inside of the cap, undpart to the outside.

This arrangement secures two very important objects-first, the properdistribution of nir within and without the cap, that the draught on theflame and the amount of oxygen ,supplied may be in the proper ratio toalfort! thecmost perfect combustion; secondly, to keep the buse of thecap B cool, and thereby prevent the heating of the base below. c

The base, A, it-will be observed, is so constructed that the cold airpassing the openings therein will como in eiose proximity, and more orles's in contact with the base of the wick-tube, preventing its becomingoverheated, and thus. making a. burner entirely safe to use inconnection with the lighter oils, ortho more volatile products ofpetroleum; n very important matter, considering hou/ impossible it isforthe consumer to lfnow just Athe quality of oil he is buying. The`projections or steady-pins here flat, and the openings which are'toreceive these in the Aflange C are elongated into slots, as in fig. 2.This enables the user to see, :it a glance, precisely how the capBshonld be placed, that the top of the wick-tube and the flame-slot, inthe top nt' the cop. may correspond.

The manner of sustaining tho chimney will be seen to be Avery unique andnovel, whil t thc air coming freely in contact with its inner surface,near the betteln, as also the outer, will keeii/he base of they 4hiinneycool, thatit may be easily handled, and the drooping pnrt of the wiresbeing more or less yielding. will readily allow for such variation insize of chimney as would he likely to occur. The ringj is for thepurpose of handling the cop B more readily, and should be arrangedopposite to oneend of the slot for the llame, :i: illustrated in ng.

What I claim as of my invention, and desire to secure by Letters Patent,is-

I. lThe openings a', in the flange C, arranged in relation to the enp B,inthe manner and for the purposes specified. V

2. The ring D, when provided with the snstainingwirese @and combinedwith the base, A, substantially as and to operate as setforth.

3,'Th'e base, A, the ring D, and the cap B, when nrrangedwith relationto each other substantially as l described.

4. yThe ringj, arranged upon and'used to lift 'the cap B by, as,described and set forth. In testimony whereof, I have signed my nameto-.this specification in thepresence of two subscribing witnesses.

i HOWARD '.IILDEN.

Witnesses: l

WM. H; Wenns, H, W. 'Pnoorin

